Locomotive driven by internal-combustion engine



H. SCHNEHDER LOCOMOTIVE DRIVEN BY INTERNAL COMBUSTION ENGINE Filed June 3, 1924 10' jj 75 I nil ||l I v v 1 Patented Dec. 16, 1924..

UNlTED STATES HEINRICH SCHNEIDER, 0F WINTERTHUR, SWITZERLAND.

LOCOMOTIVE DRIVEN BY INTERNAL-COMBUSTION ENGINE.

Application filed .Tune 3,

To all whom it may con-06m:

Be it known that I, HEINRICH SoHNni- DER, a citizen of the Republic of Switzerland, residing at VVinterthur. Switzerland, have invented certain new and useful Improvements in Locomotives Driven by Internal-Combustion Engines, of which the following is a specification, reference being had therein to the accompanying drawing.

This invention relates to improvements in locomotives driven by internal combustion engines and has particular reference to the cooling of such locomotives. The cooling of the cooling water, cooling and lubricating oil on locomotives driven by internal combustion engines of large outputs presents difficulties with the different temperatures of the atmosphere and the different running speeds.

The present invention has for its object to provide for an easy control of the temperature of thecooling medium by means of a special arrangement of the radiators, of the fans and of the drive of the latter as well as by a suitable admission and discharge of the necessary large quantities of cooling alr.

Locomotivesdriven by internal combustion engines having radiators at their ends and fans at the inner side of said radiators are known. The present invention consists in the provision of openings in the longitudinal walls of the locomotive between the radiators and the engine room and of guide vanes inserted in said openings and inclined towards the vertical longitudinal centre plane of the locomotive, and in causing the fans to rotate and to reverse their direction of rotation when the locomotive travels in the opposite direction so that for any one of the two directions, in which the locomotive travels, the fan which is at the time being the front fan draws fresh air through the radiator and forces the heated air through the guide vanes pointing in an oblique direction towards the rear, whilst the rear fan draws fresh air through the guide vanes and discharges or forces this air through the radiator. The drive of the fans is efiected by the intermediary of a change speed gear and reversing gear so that each fan may be driven at any desired speed or may be kept at a stand-still.

Owing to this arrangement it is rendered possible to provide for a large cooling surface at both ends, which ends cannot be 1924. Serial No. 717,555.

utilized for any other purpose, whereby the running resistance of the locomotive at the front as well as at the rear end is reduced to a minimum amount.

A constructional example of an embodiment of the invention is diagrammatically illustrated by way of example on the accompanying drawings, in which:

Fig. 1 is a vertical section,

Fig. 2 is a horizontal section and Fig. 3 is an end view of the locomotive.

Radiators 1 and 11, for instance of the honeycomb type, are arranged on each end of the locomotive, and at the inner side of the radiators fans 2and 12 are provided which are driven from the crude oil engine 10 through the intermediary of a change speed and reversing gear 9 and bevel wheel drive 3 and 13. 15 denotes the piping through which the cooling water for the crude oil engine is circulated and forced through the radiators 1 and 11 by the action of the circulation pump 16 driven from the oil engine. 4 and 14: denote the guide vanes which are inclined towards the vertical longitudinal centre plane of the locomotive and inserted in openings provided in the longitudinal walls of the locomotive between the radiators and the engine room 17.

When the locomotive travels towards the right (looking at Figs. 1 or 2) the front fan 2 draws fresh air through the radiator 1 and discharges the heated air through the lateral guide vanes 4 into the surrounding atmosphere, whilst the rear fan 12 draws fresh air through the guide apparatus 1 1 and discharges this air through the radiator 11 towards the rear. A similar opera tion is obtained when the locomotive travels in the opposite direction.

The larger the amounts of the heat to be dealt with and the higher the temperature of the surrounding atmosphere are the higher is the speed of the fans controlled by means of the change speed gear 9. With a smaller output of the oil engine and with a low temperature of the surrounding atmosphere one or both fans may be stopped. To this end, for instance, a disengageable clutch 18 is provided in the part of the shaft leading from the change speed gear to the fan 2. If the crude oil engine can be reversed for the purpose of changing the direction of travelling of the locomotive the reversing of the rotation of the fans occurs automatically with the reversing of the engine. If the engine rotates always in the same direction the fans are reversed by means of the reversing gear 9.

I claim:

5 1. A coolin'g arrangement for locomotives driven by internal combustion engines, comprising in combination heat exchange devices provided at the ends of the locomotive, a fan arranged on the inner side of each heat exchange device and indirectly driven by the oil engine, guide apparatus inserted in openings provided in the longitudinal walls of the locomotive between the heat exchange devices and the engine room and having vanes inclined towards the vertical longitudinal centre plane of the locomotive, and means to control the direction of rotation of the fans so that, irrespective of the direction in which the locomotive travels, the front fan draws fresh air through the co-ordinate heat exchange device and discharges the heated air through the coordinate guide apparatus whilst the rear fan draws fresh air through the coordinate guide apparatus and discharges the air through its coordinate heat exchange device. v

2. Acooling arrangement for locomotives driven by internal combustion engines, comprising in combination radiators provided at both ends of the locomotive,'a fan arranged on the inner side of each radiator and indirectly driven by the oil engine, guide vanes inclined towards the vertical longitudinal centre plane of the locomotive 3.3 and inserted in openings provided in the longitudinal walls of the locomotive, and means adapted to control the direction and the speed of rotation of the fans so that, irrespective of the'direction in which the -H) locomotive travels, the front fan draws fresh air through the coordinate radiator and discharges the heated air pas-t the coordinate guide vanes whilst the rear fan draws fresh air past its coordinate guide vanes and dis- 15 charges the air through" its coordinate radiator.

3. A cooling arrangement for locomotive driven by internal combustion engines, comprising in combination radiators provided at .30 both ends of the locomotive, a fan arranged on the inner side of each radiator and indirectly. driven by the oil engine, guide vanes inclined towards the vertical longitudinal centre plane of the locomotive and insorted in openings provided in the longitudinal walls of the locomotive, and a change speed and reversinjg gear interposed in the drive between engine'and fans and adapted to control the direction and the speed of roradiators.

tation of the fans so that, irrespective of the direction in which the locomotive travels,

the front fan draws fresh air through the coordinate radiator and discharges the and indirectly driven by the oil engine, guide vanes inclined towards the vertical longitudinal centre plane of the locomotive and inserted in openings provided in the longitudinal walls of the locomotive, a change speed and reversing gear interposed in the drive between engine and fans and adapted to control the direction and the speed of rotation of the fans so that, irrespective of the direction in which the locomotive travels, the front fan draws fresh air through the coordinate radiator and discharges the heated air past the coordinate guide vanes whilst the rear fan draws fresh air past its coordinate guide vanes and discharges the air through its coordinate radiator, and a gisengageable clutch to cut out one of the ans.

5. A cooling arrangement for locomotives driven by internal combustion engines, comprising in combination, radiators provided at both ends of the locomotive, a fan arranged on the inner side of each radiator and indirectly driven by the oil engine, Eguide vanes inclined towards the vertical longitudinal centre plane of the locomotive and inserted in openings provided in the longitudinal walls-of the locomotive, a change speed and reversing gear interposed in the drive between engine and fans and adapted to control the direction and the speed of rotation of the fans so that, irrespective of the direction in which the loco-motive travels, the front fan draws fresh air through the coordinate radiator and discharges the heated air past the coordinate guide vanes whilst the rear fan draws fresh air past its coordinate guide vanes and discharges the air through its coordinate radiator, and a disengageable clutch to cut out one of the fans, and means to cause a circulation of the cooling medium to be cooled through the In testimony whereof I affix my signature HEINRICH SCHNEIDER. 

